55709330 has 16 divisors (see below), whose sum is σ = 105554880. Its totient is φ = 21110832.

The previous prime is 55709327. The next prime is 55709333. The reversal of 55709330 is 3390755.

It is an interprime number because it is at equal distance from previous prime (55709327) and next prime (55709333).

It is not an unprimeable number, because it can be changed into a prime (55709333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146414 + ... + 146793.

It is an arithmetic number, because the mean of its divisors is an integer number (6597180).

Almost surely, 2^55709330 is an apocalyptic number.

55709330 is a deficient number, since it is larger than the sum of its proper divisors (49845550).

55709330 is a wasteful number, since it uses less digits than its factorization.

55709330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293233.

The product of its (nonzero) digits is 14175, while the sum is 32.

The square root of 55709330 is about 7463.8683000171. The cubic root of 55709330 is about 381.9231454535.

The spelling of 55709330 in words is "fifty-five million, seven hundred nine thousand, three hundred thirty".